文献类型：期刊文献

英文题名：Surfactant-assisted polypyrrole/titanate composite nanofibers: Morphology, structure and electrical properties

作者：Cheng, Qilin[1,2];He, Ying[1];Pavlinek, Vladimir[2];Li, Chunzhong[1];Saha, Petr[2]

机构：[1]E China Univ Sci & Technol, Sch Mat Sci & Engn, Key Lab Ultrafine Mat, Minist Educ, Shanghai 200237, Peoples R China;[2]Tomas Bata Univ Zlin, Ctr Polymer, Fac Technol, Zlin 76272, Czech Republic

年份：2008

卷号：158

期号：21-24

起止页码：953

外文期刊名：SYNTHETIC METALS

收录：;EI(收录号：20085211809420);WOS:【SCI-EXPANDED(收录号:WOS:000262573900029)】；

基金：This work was supported by the National Natural Science Foundation of China (20236020), the National High Technology Research and Development Program of China (2006AA03Z358), the Special Projects for key laboratories in Shanghai (05DZ22302, 06DZ22008), and 973 program (2004CB719500). The authors also wish to thank to the Ministry of Education, Youth and Sports of the Czech Republic (MSM 7088352101) and the Grant Agency of the Czech Republic (202/06/0419) for financial support.

语种：英文

外文关键词：Polypyrrole; Titanate nanowires; Composite nanofibers; Electrical properties

摘要：In this work, we demonstrate a simple route to the preparation of bulk quantities of polypyrrole/titanate (PPy/TN) composite nanofibers using cetyl trimethylammonium bromide (CTAB) as a structure-directing agent. Titanate (TN) nanowires and CTAB act as a template for fabrication of the composite nanofibers. The structural characterization shows that the resulting nanocomposite exhibits core-shell nanofiber networks and the average diameter of the nanofibers is around 50-90 nm. The electrical conductivity measurements reveal that the addition of TN nanowires slightly enhances the conductivity of the composite. The ac conductivity follows the power law, which varies with the mass ratio of pyrrole monomer to TN. A possible mechanism is also proposed to interpret the formation of the PPy/TN composite nanofiber networks. (C) 2008 Elsevier B.V. All rights reserved.